
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
CaSR CRISPR Activation Plasmid (h) | sc-401749-ACT | 20 µg | $397.00 | |||
CaSR CRISPR Activation Plasmid (h2) | sc-401749-ACT-2 | 20 µg | $397.00 |
Human CASR encodes the calcium-sensing receptor (CaSR), a class C GPCR that detects fluctuations in extracellular Ca2+ and coordinates calcium homeostasis. CaSR signaling engages G protein–dependent pathways including PLC/IP3-mediated calcium mobilization, MAPK/ERK signaling, and regulation of cAMP, shaping cellular responses in parathyroid, kidney, and other tissues involved in mineral ion balance. By modulating secretion and transport processes, CaSR influences parathyroid hormone dynamics and renal handling of calcium and phosphate. Altered CASR activity or expression is associated with disorders of calcium metabolism and has been investigated in contexts such as endocrine dysfunction and cancer-related signaling programs.
CaSR CRISPR Activation Plasmid (h) provides a targeted, non-destructive approach to upregulating endogenous CASR expression without altering the underlying DNA sequence.
CaSR CRISPR Activation Plasmid (h) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the CASR locus in human cell lines. The system is built around a catalytically inactive Cas9 (dCas9) carrying two inactivating mutations (D10A and N863A) that eliminate nuclease activity while preserving DNA binding. This dCas9 is fused to VP64, a potent transcriptional activator, and is co-expressed with a blasticidin resistance gene for selection. The second plasmid encodes the MS2-p65-HSF1 fusion protein, a secondary activator complex that works in concert with dCas9-VP64, alongside a hygromycin resistance gene. The third plasmid encodes a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers that recruit the MS2-p65-HSF1 complex to the activation site, accompanied by a puromycin resistance gene. The three plasmids are delivered at a 1:1:1 mass ratio for balanced expression of all system components.
Once assembled at the target locus, the SAM complex binds within approximately 200 bp upstream of the CASR transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous CaSR expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native CASR locus and enabling the study of CaSR-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of CaSR pathway restoration in tumor cells with silenced or reduced CASR expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.